package com.diko.product.exception;

import com.diko.common.exception.BizCodeEnume;
import com.diko.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * @author Emma Li
 * @date 2021/4/17 - 16:34
 * @Description 统一异常处理
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.diko.product.app")
//@RestController
//@ControllerAdvice
public class MallExceptionControllerAdvice {
    //这个是校验错误
    @ExceptionHandler(value= MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e){
        log.error("数据校验出现问题{},异常类型：{}",e.getMessage(),e.getClass());

        //在这里获得错误数据BindingResult
        BindingResult bindingResult = e.getBindingResult();

        Map<String,String> errorMap=new HashMap<>();

        bindingResult.getFieldErrors().forEach(fieldError -> {
            //获得错误数据和错误信息
            errorMap.put(fieldError.getField(),fieldError.getDefaultMessage());
        });
        //错误码和错误信息
        return R.error(BizCodeEnume.VAILD_EXCEPTION.getCode(),BizCodeEnume.VAILD_EXCEPTION.getMsg()).put("data",errorMap);
    }

    //是所有错误，若不符合以上的精确匹配，就使用这个方法
    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable throwable){
        log.error("错误：",throwable);
        return R.error(BizCodeEnume.UNKNOW_EXCEPTION.getCode(),BizCodeEnume.UNKNOW_EXCEPTION.getMsg());
    }
}
